Scarfski/filament
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add a material parameter to control shadow far attenuation

Browse Source 
FIXES=[436680157]
This commit is contained in:
Mathias Agopian
2025-08-12 17:05:15 -07:00
committed by Mathias Agopian
parent 45f68909d7
commit bbf0754183
9 changed files with 41 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
shaders/src/surface_light_directional.fs
View File

@@ -61,12 +61,14 @@ void evaluateDirectionalLight(const MaterialInputs material,
#if defined(MATERIAL_HAS_SHADOW_STRENGTH)
applyShadowStrength(visibility, material.shadowStrength);
#endif
#if defined (FILAMENT_SHADOW_FAR_ATTENUATION)
// shadow far attenuation
highp vec3 v = getWorldPosition() - getWorldCameraPosition();
// (viewFromWorld * v).z == dot(transpose(viewFromWorld), v)
highp float z = dot(transpose(getViewFromWorldMatrix())[2].xyz, v);
highp vec2 p = frameUniforms.shadowFarAttenuationParams;
visibility = 1.0 - ((1.0 - visibility) * saturate(p.x - z * z * p.y));
#endif
}
if ((frameUniforms.directionalShadows & 0x2) != 0 && visibility > 0.0) {
if ((object_uniforms_flagsChannels & FILAMENT_OBJECT_CONTACT_SHADOWS_BIT) != 0) {

2
shaders/src/surface_shading_unlit.fs
View File

@@ -50,12 +50,14 @@ vec4 evaluateMaterial(const MaterialInputs material) {
#if defined(MATERIAL_HAS_SHADOW_STRENGTH)
applyShadowStrength(visibility, material.shadowStrength);
#endif
#if defined (FILAMENT_SHADOW_FAR_ATTENUATION)
// shadow far attenuation
highp vec3 v = getWorldPosition() - getWorldCameraPosition();
// (viewFromWorld * v).z == dot(transpose(viewFromWorld), v)
highp float z = dot(transpose(getViewFromWorldMatrix())[2].xyz, v);
highp vec2 p = frameUniforms.shadowFarAttenuationParams;
visibility = 1.0 - ((1.0 - visibility) * saturate(p.x - z * z * p.y));
#endif
}
if ((frameUniforms.directionalShadows & 0x2) != 0 && visibility > 0.0) {
if ((object_uniforms_flagsChannels & FILAMENT_OBJECT_CONTACT_SHADOWS_BIT) != 0) {